Here are some uncommon/rare mineral mining stats I've collected for some of the UIT systems.
I do not recommend adding it to the official pages yet. It is in no way complete, and I'm still verifying the actual values that I've found. In the future, I'd like to improve this by adding maps; I have a hard enough time finding these myself!
Verasi
C-4
Ore found: VanAzek, Xithricite
I-5
Ore found: VanAzek, Xithricite
E-14
Ore found: VanAzek, Xithricite
Arta Caelistis
C-4
Ore found: Ishik, Heliocene (53%, 32%)
J-11
Ore found: Lanthanic (25%, 4%)
J-12
Ore found: Ishik
L-2
Ore found: Ishik, VanAzek, Lanthanic
N-15
Ore found: Ishik, VanAzek
O-12
Ore found: Ishik, Heliocene (42%, 35%, 16%, 16%, 12%, 3%)
O-15
Ore found: Ishik, VanAzek, Lanthanic (21%), Heliocene (27%, 17%, 12%)
Azek
C-4
Ore found: VanAzek, Xithricite, Heliocene
C-14
Ore found: VanAzek, Heliocene (19%)
D-3
Ore found: VanAzek, Xithricite
D-11
Ore found: VanAzek, Xithricite
E-10
Ore found: Heliocene
I-4
Ore found: Heliocene (69%)
I-11
Ore found: VanAzek
I-12
Ore found: Ishik, VanAzek, Pentric (54%)
M-1
Ore found: VanAzek, Pentric
M-4
Ore found: VanAzek, Heliocene (63%, 48%, 36%, 16%)
N-7
Ore found: VanAzek
Dau
H-9
Ore found: Xithricite